Card Codex

M:tG card similarity search

17 May 2024: Card library updated.

Horizon Stone

5 · Artifact

If you would lose unspent mana, that mana becomes colorless instead.

Similar cards

Color identity:
NameManaTypeText
Jeweled Amulet 0Artifact {1}, {T}: Put a charge counter on Jeweled Amulet. Note the type of mana spent to pay this activation cost. Activate only if there are no charge counters on Jeweled Amulet. {T}, Remove a charge counter from Jeweled Amulet: Add one mana of Jeweled Amulet's last noted type.
Sorin the Mirthless 2BBLegendary Planeswalker — Sorin [+1]: Look at the top card of your library. You may reveal that card and put it into your hand. If you do, you lose life equal to its mana value. [−2]: Create a 2/3 black Vampire creature token with flying and lifelink. [−7]: Sorin the Mirthless deals 13 damage to any target. You gain 13 life. Loyalty 4
Grand Marshal Macie 1WBLegendary Creature — Human Performer You may choose not to untap Grand Marshal Macie during your untap step. If you do, put a pause counter on it, then you lose 1 life for each pause counter on it. Whenever Macie becomes untapped, remove all pause counters from it. {2}, {T}: Choose an "until end of turn" or "this turn" effect. As long as Macie remains tapped, that effect doesn't end. 2/2
Kayla's Reconstruction XWWWSorcery Look at the top seven cards of your library. Put up to X artifact and/or creature cards with mana value 3 or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order.
Mild-Mannered Librarian GCreature — Human {3}{G}: Mild-Mannered Librarian becomes a Werewolf. Put two +1/+1 counters on it and you draw a card. Activate only once. 1/1
Spark of Creativity RSorcery Choose target creature. Exile the top card of your library. You may have Spark of Creativity deal damage to that creature equal to the exiled card's mana value. If you don't, you may play that card until end of turn.
Vengeful Archon 4WWWCreature — Archon Flying {X}: Prevent the next X damage that would be dealt to you this turn. If damage is prevented this way, Vengeful Archon deals that much damage to target player or planeswalker. 7/7
Pain's Reward 2BSorcery Each player may bid life. You start the bidding with a bid of any number. In turn order, each player may top the high bid. The bidding ends if the high bid stands. The high bidder loses life equal to the high bid and draws four cards.
Kami of False Hope WCreature — Spirit Sacrifice Kami of False Hope: Prevent all combat damage that would be dealt this turn. 1/1
Ether Well 3UInstant Put target creature on top of its owner's library. If that creature is red, you may put it on the bottom of its owner's library instead.
Page 388